CN207393780U - A kind of taper key and its connection disassembling structure with wheel hub - Google Patents
A kind of taper key and its connection disassembling structure with wheel hub Download PDFInfo
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- CN207393780U CN207393780U CN201720753593.8U CN201720753593U CN207393780U CN 207393780 U CN207393780 U CN 207393780U CN 201720753593 U CN201720753593 U CN 201720753593U CN 207393780 U CN207393780 U CN 207393780U
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- key
- taper
- taper key
- wheel hub
- hole
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Abstract
A kind of taper key and its connection disassembling structure with wheel hub, it is reasonable in design, based on national standard taper key, keep material, heat treatment, accuracy class etc. constant, pass through the thickness of increasing key body body, increase through hole installation backing-up screw and increase threaded hole installing and dismounting bar, fundamentally solve the problems, such as key body body easily loosen, loosen after fragile part, not easy to remove.
Description
Technical field：
A kind of connection disassembling structure the utility model is related to taper key and its with wheel hub.
Background technology：
A kind of common part of the taper key as mechanical connection is mainly used for the connection of transmission mechanism axis and gear,
For transferring torque, suitable for the working environment of low-speed heave-load, such as transmission shaft and gear, clutch friction in mechanical press
Disk or the connection with brake friction disk usually all use the connection mode of taper key.Its operation principle is：By taper key
It wedges between axis and wheel hub, normal pressure is generated on the contact surface of connector, transfer torque mainly by the friction between connector
Power rather than connector to the shearing force of taper key side, therefore the working face of taper key be inclined-plane and bottom surface rather than
Two sides, this is the most fundamental difference being connected with flat key.Taper key early has standard GB/T/T1564 specifications, but standard type
Taper key has 3 in use：1st, anti-loosing effect is not good enough；Wedge key is come locking but real by inclined-plane self-locking
Since immersion oil, long-term alternate load effect can also loosen in the use of border.Once the 2, loosening, the side of key will become working face, by
Smaller in key body thickness, keyway or hub slot extrusion stress increase severely, and frequently result in keyway or the extrusion of hub slot and damage.3rd, need
When being disassembled, for example carrying out maintenance of equipment, wedge key is difficult again dismounting, because gib head is shorter, and close to wheel hub, without fine
Ground operating space and make force.
Utility model content：
The purpose of this utility model aiming at disadvantages mentioned above existing in the prior art, provide a kind of taper key and its
With the connection disassembling structure of wheel hub, it is reasonable in design, based on national standard taper key, keeps material, heat treatment, precision
Grade etc. is constant, by the thickness of increasing key body body, increases through hole installation backing-up screw and increases threaded hole installing and dismounting bar,
Solve problems of the prior art.
Used technical solution is the utility model to solve above-mentioned technical problem：
A kind of taper key, including key body body, be equipped on key body body upper working face, lower working face, Inner ends and
Outer end is equipped with through hole on the key body body above upper working face, threaded hole is equipped on the key body body below upper working face.
Taper key is connected by one connection bolt through through hole with wheel hub.
Washer is equipped between bolt and through hole.
The washer is single ear anti-motion washer.
A kind of detaching structure of taper key as described above, the detaching structure are included by being threadably mounted at threaded hole
On removal rod.
The removal rod is double threaded screw, and one end of double threaded screw is mounted in threaded hole.
One pull rod is by being threadably mounted on double threaded screw.
Trip hammer is arranged on pull rod.
The detaching structure further includes the cushion block being arranged between key body body and wheel hub.
Compared with prior art, the utility model has the advantages that：It is reasonable in design, based on national standard taper key,
Keep material, heat treatment, accuracy class etc. constant, by the thickness of increasing key body body, increase through hole installation backing-up screw and
Increase threaded hole installing and dismounting bar, fundamentally solve key body body easily loosen, loosen after fragile part, not easy to remove
Problem.
Description of the drawings：
Fig. 1 is the structure diagram of taper key in the utility model.
Fig. 2 is the mounting structure schematic diagram of taper key and wheel hub in the utility model.
Fig. 3 is the detaching structure schematic diagram of taper key and wheel hub in the utility model.
In figure, 1, key body body, 2, upper working face, 3, lower working face, 4, Inner ends, 5, outer end, 6, through hole, 7, threaded hole,
8th, bolt is connected, 9, wheel hub, 10, single ear anti-motion washer, 11, removal rod, 12, pull rod, 13, trip hammer, 14, cushion block.
Specific embodiment：
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this reality
It is described in detail with new.
As shown in Figs. 1-3, a kind of taper key, including key body body 1, be equipped on key body body 1 upper working face 2, under
Working face 3, Inner ends 4 and outer end 5 are equipped with through hole 6 on the key body body 1 above upper working face 2, below upper working face 2
Key body body 1 be equipped with threaded hole 7.
Taper key is connected by one connection bolt 8 through through hole 6 with wheel hub 9, and washer is equipped between bolt and through hole 6.
The washer is single ear anti-motion washer 10.
The detaching structure includes the removal rod 11 by being threadably mounted on threaded hole 7.
The removal rod 11 is double threaded screw, and one end of double threaded screw is mounted in threaded hole 7.
One pull rod 12 is by being threadably mounted on double threaded screw, and the increase arm of force is laborsaving.
Trip hammer 13 is arranged on pull rod 12, conveniently rocks pull rod 12.
The detaching structure further includes the cushion block 14 being arranged between key body body 1 and wheel hub 9, increases dismounting effect.
When installing taper key, after taper key wedging axis and wheel hub 9, fastened with connection bolt 8, and with monaural stop
Washer 10 is locking, effectively prevents taper key from loosening.
When dismantling taper key, connection bolt 8 is first exited wheel hub 9, then cushion block 14 is padded in taper key and wheel
Between hub 9, then connection bolt 8 tightened, connection bolt 8 is made to be pushed against on cushion block 14, double threaded screw is then mounted on screw thread
In hole 7, then trip is hammered into shape 13 and is sleeved on pull rod 12, pull rod 12 is mounted on double threaded screw, quickly rocked trip hammer 13 to the left, hit
Pull rod 12 is hit, taper key is driven to be moved to the left, meanwhile, connection bolt 8 is tightened in time, can increase dismounting effect, it can be quickly square
Just dismounting taper key.
Above-mentioned specific embodiment cannot function as the limitation to scope of protection of the utility model, for the skill of the art
For art personnel, any alternate modification or conversion made to the utility model embodiment all fall within the guarantor of the utility model
In the range of shield.
Part is not described in detail for the utility model, is the known technology of those skilled in the art of the present technique.
Claims (9)
1. a kind of taper key, it is characterised in that：Including key body body, be equipped on key body body upper working face, lower working face,
Inner ends and outer end are equipped with through hole on the key body body above upper working face, are set on the key body body below upper working face
There is threaded hole.
2. a kind of connection structure of taper key according to claim 1, it is characterised in that：One connection bolt passes through through hole
Taper key is connected with wheel hub.
3. a kind of connection structure of taper key according to claim 2, it is characterised in that：It is set between bolt and through hole
There is washer.
4. a kind of connection structure of taper key according to claim 3, it is characterised in that：The washer is monaural stop
Washer.
5. a kind of detaching structure of taper key according to claim 1, it is characterised in that：Detaching structure includes passing through spiral shell
Line is mounted on the removal rod on threaded hole.
6. a kind of detaching structure of taper key according to claim 5, it is characterised in that：The removal rod is double end spiral shell
Bar, one end of double threaded screw are mounted in threaded hole.
7. a kind of detaching structure of taper key according to claim 6, it is characterised in that：One pull rod is installed by screw thread
On double threaded screw.
8. a kind of detaching structure of taper key according to claim 5, it is characterised in that：A trip is arranged on pull rod
Hammer.
9. according to the detaching structure of any taper keys of claim 5-8, it is characterised in that：The detaching structure also wraps
Include the cushion block being arranged between key body body and wheel hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720753593.8U CN207393780U (en) | 2017-06-26 | 2017-06-26 | A kind of taper key and its connection disassembling structure with wheel hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720753593.8U CN207393780U (en) | 2017-06-26 | 2017-06-26 | A kind of taper key and its connection disassembling structure with wheel hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393780U true CN207393780U (en) | 2018-05-22 |
Family
ID=62403389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720753593.8U Active CN207393780U (en) | 2017-06-26 | 2017-06-26 | A kind of taper key and its connection disassembling structure with wheel hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393780U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550497A (en) * | 2020-04-15 | 2020-08-18 | 大冶特殊钢有限公司 | Novel connecting structure of shaft and hub |
| CN113586690A (en) * | 2021-07-09 | 2021-11-02 | 中车太原机车车辆有限公司 | Railway hopper car transmission shaft hook wedge key protection device |
| CN113883155A (en) * | 2021-09-24 | 2022-01-04 | 中车太原机车车辆有限公司 | Railway wagon hook-head type wedge key anti-loosening device and railway wagon |
-
2017
- 2017-06-26 CN CN201720753593.8U patent/CN207393780U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550497A (en) * | 2020-04-15 | 2020-08-18 | 大冶特殊钢有限公司 | Novel connecting structure of shaft and hub |
| CN113586690A (en) * | 2021-07-09 | 2021-11-02 | 中车太原机车车辆有限公司 | Railway hopper car transmission shaft hook wedge key protection device |
| CN113586690B (en) * | 2021-07-09 | 2023-03-24 | 中车太原机车车辆有限公司 | Railway hopper car transmission shaft hook wedge key protection device |
| CN113883155A (en) * | 2021-09-24 | 2022-01-04 | 中车太原机车车辆有限公司 | Railway wagon hook-head type wedge key anti-loosening device and railway wagon |
| CN113883155B (en) * | 2021-09-24 | 2023-08-29 | 中车太原机车车辆有限公司 | Railway freight car gib head formula key locking device and railway freight car |
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